One Electrical Technology Question per Day 2018.12.13

2018-12-13View Original

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Which of the following motor protection classifications does not meet the requirements for use in a fire hazard zone classified as 21? A. The protection classification for fixed-mounted motors is IP44. B. The protection classification for portable motors is IP44. C. The protection classification for mobile motors is IP54. D. The protection classification for portable motors is IP54. Answer:

Reply #22018-12-13

B. The protective structure of the portable motor is IP44

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One Electrical Technology Question per Day 2018.12.13

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